I installed 7 last night and it went without a hitch other than when I tried to get CODUO to work. Sure, I was able to get it started with no problem by right-clicking on the icon and selecting Run As Administrator and it loaded beyond fast, however just before it would open the game I got a message that said "hunk allocate temp memory: failed on 4194320, needs 2747216" . This is the 64 Bit "7" and I have plenty of ram, an Nvidia 1gb vid card, etc (it's a gaming computer) and like everyone I want the fastest possible gaming experience. So, has anyone experienced this and do you have any work-a-round for me? I am going to keep this forum open all day while I work in the hopes someone can help so I can try CODUO tonight and actually see it open completely. Thanks!